CC2630_15 Datasheet, PDF (31/50 Pages) Texas Instruments – CC2630 SimpleLink 6LoWPAN / ZigBee Wireless MCU

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CC2630
SWRS177 – FEBRUARY 2015
Internal DCDC regulator
10uF
To all VDDR Pins
10uH
DCDC_SW Pin
VDDS_DCDC Pin
VDDS_DCDC
input decoupling
10uF ± 22uF
CC26xx
(GND exposed die
attached pad )
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
Internal LDO regulator
10uF
To all VDDR Pins
External regulator
Ext
regulator
1.7V ± 1.95V to all VDDR- and VDDS Pins except VDDS_DCDC
2.2uF
DCDC_SW Pin NC
VDDS_DCDC Pin
VDDS_DCDC
input decoupling
10uF ± 22uF
CC26xx
(GND exposed die
attached pad )
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
DCDC_SW Pin
VDDS_DCDC Pin
CC26xx
(GND exposed die
attached pad )
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
1.8V ± 3.8V
to all VDDS Pins
24MHz
XTAL
(Load caps
on chip)
1.8V ± 3.8V
Supply voltage
24MHz
XTAL
(Load caps
on chip)
To all VDDS Pins
Figure 7-2. Supply Voltage Configurations
24MHz
XTAL
(Load caps
on chip)
Power supply decoupling capacitors are not shown. Digital I/Os not included. Pin positions, and
component values are not final. For detailed overview of power supply decoupling and wiring, see the TI
reference designs and the CC26xx technical reference manual (Section 8.2).
Figure 7-1 shows that the RF front end can be used both differentially and single-endedly with the option
of having internal or external biasing. These options allow for various trade-offs between cost, board-
space, and RF performance. Differential operation with external bias gives the best performance while
single-ended operation with internal bias gives the least amount of external components and the lowest
power consumption.
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Application Circuit
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